desperate vs unsafe

desperate is a noun but unsafe is not a noun.

Word	Noun	Adjective	Verb	Adverb
desperate	Yes	Yes	No	No
unsafe	No	Yes	No	No

desperate (noun)	unsafe (noun)
a person who is frightened and in need of help

desperate (adjective)	unsafe (adjective)
showing extreme courage; especially of actions courageously undertaken in desperation as a last resort	involving or causing danger or risk; liable to hurt or harm
fraught with extreme danger; nearly hopeless	lacking in security or safety
arising from or marked by despair or loss of hope	not safe from attack
showing extreme urgency or intensity especially because of great need or desire
desperately determined
(of persons) dangerously reckless or violent as from urgency or despair